Issues · ad-freiburg/qlever

Memory allocation errors

ad-freiburg/qlever#3593 · opened

on Oct 1, 2026

1

misleading number of results returned in interactive interface for queries with LIMIT

ad-freiburg/qlever#3590 · opened

on Oct 1, 2026

4

Query that sorts a ~145M-row lazy TransitivePath result fails with "Tried to allocate ... but only ... were available" since #3463 (parallel block merge in `CompressedExternalIdTableSorter`)

ad-freiburg/qlever#3582 · opened

on Oct 1, 2026

`GROUP BY` on a variable that does not occur in the pattern returns one row for an empty result

ad-freiburg/qlever#3579 · opened

on Sep 30, 2026

Assertion `numVariables_ <= 3 && numVariables_ > 0` failed for a constant triple in `GRAPH ?g` with `lazy-index-scan-max-size-materialization=0`

ad-freiburg/qlever#3574 · opened

on Sep 30, 2026

Query planning time grows exponentially with the nesting depth of `FILTER EXISTS`

ad-freiburg/qlever#3573 · opened

on Sep 30, 2026

Aggregates of constants ignore the number of rows (`COUNT(1)`, `SUM(5)`)

ad-freiburg/qlever#3572 · opened

on Sep 30, 2026

Assertion `qet->getVariableColumns() == sortedQet.value()->getVariableColumns()` failed for a join with a sub-`SELECT` over a `UNION` when `strip-columns` is disabled

ad-freiburg/qlever#3569 · opened

on Sep 30, 2026

Assertion `variableToColumnMap_ == result->variableToColumnMap_` failed when a query with `GRAPH ?g` and a path alternative is run a second time

ad-freiburg/qlever#3568 · opened

on Sep 30, 2026

Assertion in `createDistinctTree` for `DISTINCT` over a sub-`SELECT` when `strip-columns` is disabled

ad-freiburg/qlever#3563 · opened

on Sep 29, 2026

`absl::container_internal::raw_hash_map<>::at` error for `GRAPH ?g { ?g <a>?/<b>? (?y) }`

ad-freiburg/qlever#3561 · opened

on Sep 29, 2026

Assertion `parseResult == 0` failed for `IRI()` of an invalid relative IRI with `BASE`

ad-freiburg/qlever#3560 · opened

on Sep 29, 2026

Assertion `set._intervals.back().second <= targetSize` failed for `NOT IN ()` outside `FILTER`

ad-freiburg/qlever#3559 · opened

on Sep 29, 2026

Assertion `result.idTableView().empty() || !knownEmptyResult()` failed for `VALUES () { () }`

ad-freiburg/qlever#3558 · opened

on Sep 29, 2026

Assertion `!nextCandidates.empty()` failed for nested group with two `MINUS` (#1306 reproduces again)

ad-freiburg/qlever#3556 · opened

on Sep 29, 2026

Assertion `variablesAreDisjoint` failed for cross product with uncorrelated `FILTER EXISTS`

ad-freiburg/qlever#3555 · opened

on Sep 29, 2026

Issue with filters on dates

ad-freiburg/qlever#3548 · opened

on Sep 28, 2026

With `LIMIT`, planning time grows quadratically (or worse) with the number of OPTIONALs

ad-freiburg/qlever#3474 · opened

on Sep 26, 2026

3

`qlever-index` without `-f` fails an internal check instead of reading from stdin (as `--help` says

ad-freiburg/qlever#3473 · opened

on Sep 26, 2026

A `GRAPH` clause nested inside another `GRAPH` clause matches nothing

ad-freiburg/qlever#3472 · opened

on Sep 26, 2026

`INSERT … WHERE`: a blank node in the template is the same node for every solution instead of a fresh one

ad-freiburg/qlever#3471 · opened

on Sep 26, 2026

Adding seemingly neutral additional brackets to SPARQL query result in timeout

ad-freiburg/qlever#3467 · opened

on Sep 25, 2026

Compilation of qlever fails on fedora 44

ad-freiburg/qlever#3454 · opened

on Sep 24, 2026

Unable to subtract very distant datetimes

ad-freiburg/qlever#3439 · opened

on Sep 22, 2026

"Automatically add names to result" affects GROUP_CONCAT in SELECT clause

ad-freiburg/qlever#3384 · opened

on Sep 10, 2026